Eighth to theodoee w



(No Model.)

A. W. GETCHELL.

OAR TRUCK. 3 No. 333,623. Patented Jan. 5, 1886.

lnvelfiar,

UNITED STATES PATENT OFFICE.

EIGHTH TO THEODORE W.

ENSIGN, OF SAME PLACE.

CAR-TRUCK.

$1?I-IlCIFICATION forming part of Letters Patent No. 333,623, dated January 5, 1886.

Application filed August 28, 1855.

To all whom it may concern.-

Be it known that I, AUGUSTUS WILLIAM GETcHELL, of Cleveland, in the county of Guyahoga and State of Ohio, have invented cer- 5 tain new and useful Improvements in Roller- Trucks for Railway-Oars, of which the follow ing is a specification.

This invention relates to trucks for railwaycars, and has for its object to provide ananti- Io friction truck constructed and arranged in such a manner that the car is carried on the rails on rollers, which do not turn on axles or journals, require no oiling, whereby a car is easily started and kept in motion.

The principle upon which this invention is based is that large and heavy bodies are easily moved on rollers, require less power to put in motion, and the momentum thus easily gained enables a car to be easily kept moving. This method is especially adapted to extremely heavy loads.

In the accompanying drawings, Figure l is a side elevation of lower part of a car having my improved roller-truck attached, with side plate removed to show position of rollers. Fig. 2 is a cross-section on line 2 2 of Fig. 1. Fig. 3 is a perspective view in crosssection, showing a modification in arrangement of rollers, showing opposite rollers united by axles '0 and dispensing withinsideplates. This modification may be adopted on narrow-gage tracks; but the plan shown in Figs. 1 and 2 is preferable.

To the under side of the body of the car A are firmly attached depending plates B B, the inside faces of which have longitudinal grooves O G, and between said plates B are firmly bolted beams D midway between the said grooves. Said beams have their lower sides inclined at 40 the ends, as seen in Fig. 1, for a purpose hereinafter shown. E are rollers having an annular flange on one end, and are provided with short journals on each end, which run along in the aforesaid grooves O in the plates B.

Serial No.175,590. (No model.)

The purpose of these grooves and the journals on the rollers is not for the rollers to turn up on, except at the extreme points of the beams, but for the purpose of Keeping the rollers in place and preventing their dropping out of the truck. A groove, 01, is made in the sides of the beam for the flanges of the rollers to run in as they travel along on the upper and lower sides thereof. The rollers run on the track in like manner to other car-wheels.

In Fig. 3 the rollers are seen nnitedin pairs by axles, in which case the inside plates may be dispensed with.

The operation of this truck is as follows: The rollers beneath the beam are free to roll between the beam. and the track, the groove in the plates being made wide enough so that thejonrnals of the rollers do not touch. Thus the car rolls along on the rollers. When, how ever, the rolls reach the rear end of the beam and are pushed up the incline, they roll 6 on theirjournals in the grooves, and are thus carried around the point of the beam, up onto the top surface ofthe beam, and are easily rolled along thereon, and successively drop ofi' from the forward point of the beam, descend- 7o ing theincline, and take their places underneath the beam, thus continuously and successively providing a means of propelling the car on the track on rollers. The rolls are not placedclose enough to interfere with one an- 7 other, but roll along independently. Neither do they bind by twisting, for theirends are broad enough to prev 311i twisting.

Having described my invention, I claim The combination, with the car A, of the truck. consisting of the grooved plates B B, 

